Intel system studio 2018: Not getting an option select yocto image for container to build project

Intel system studio 2018: Not getting an option select yocto image for container to build project

I'm trying to build my project for Intel Edison. Connected an Edison board to the linux machine and was able to identify the device in the ISS 2018. Created a new project as "Project for building in a container and running on linux". I was not able choose for Yocto as target OS for building in a container. Please help me through the procedure to download and install the yocto docker image for intel system studio iot edision 2018.